Exercise device



FIG. 1 is a perspective view of the exercise device;

FIG. 2 is a front elevational view of the exercise device;

FIG. 3 is a rear elevational view of the exercise device;

FIG. 4 is a right-side elevational view of the exercise device;

FIG. 5 is a left-side elevational view of the exercise device;

FIG. 6 is a top plan view of the exercise device; and,

FIG. 7 is a bottom plan view of the exercise device. 

CLAIM I claim the ornamental design for an exercise device, as shown and described. 